<template>
  <div>
    <!-- banner -->
    <div class="banner" :style="cover">
      <h1 class="banner-title">说说</h1>
    </div>
    <!-- 说说内容 -->
    <v-card class="blog-container">
      <div class="talk-item" v-for="item of talkList" :key="item.id">
        <router-link :to="'/talks/' + item.id">
          <!-- 用户信息 -->
          <div class="user-info-wrapper">
            <v-avatar size="36" class="user-avatar">
              <img :src="item.avatar" />
            </v-avatar>
            <div class="user-detail-wrapper">
              <div class="user-nickname">
                {{ item.nickname }}
                <v-icon class="user-sign" size="20" color="#ffa51e">
                  mdi-check-decagram
                </v-icon>
              </div>
              <!-- 发表时间 -->
              <div class="time">
                {{ item.createTime | time }}
                <span class="top" v-if="item.isTop == 1">
                  <i class="iconfont iconzhiding" /> 置顶
                </span>
              </div>
              <!-- 说说信息 -->
              <div class="talk-content" v-html="item.content" />
              <!-- 图片列表 -->
              <v-row class="talk-images" v-if="item.imgList">
                <v-col
                  :md="4"
                  :cols="6"
                  v-for="(img, index) of item.imgList"
                  :key="index"
                >
                  <v-img
                    class="images-items"
                    :src="img"
                    aspect-ratio="1"
                    max-height="200"
                    @click.prevent="previewImg(img)"
                  />
                </v-col>
              </v-row>
              <!-- 说说操作 -->
              <div class="talk-operation">
                <div class="talk-operation-item">
                  <v-icon
                    size="16"
                    :color="isLike(item.id)"
                    class="like-btn"
                    @click.prevent="like(item)"
                  >
                    mdi-thumb-up
                  </v-icon>
                  <div class="operation-count">
                    {{ item.likeCount == null ? 0 : item.likeCount }}
                  </div>
                </div>
                <div class="talk-operation-item">
                  <v-icon size="16" color="#999">mdi-chat</v-icon>
                  <div class="operation-count">
                    {{ item.commentCount == null ? 0 : item.commentCount }}
                  </div>
                </div>
              </div>
            </div>
          </div>
        </router-link>
      </div>
      <div
        class="load-wrapper"
        v-if="talkList && count > talkList.length"
        @click="listTalks"
      >
        <v-btn outlined>
          加载更多...
        </v-btn>
      </div>
    </v-card>
  </div>
</template>

<script>
export default {
  created() {
    this.listTalks();
  },
  data: function() {
    return {
      current: 1,
      size: 10,
      talkList: [],
      count: 0,
      previewList: []
    };
  },
  methods: {
    listTalks() {
      this.axios
        .get("/api/talks", {
          params: {
            current: this.current,
            size: this.size
          }
        })
        .then(({ data }) => {
          if (this.current == 1) {
            this.talkList = data.data.recordList;
          } else {
            this.talkList.push(...data.data.recordList);
          }
          this.talkList.forEach(item => {
            if (item.imgList) {
              this.previewList.push(...item.imgList);
            }
          });
          this.current++;
          this.count = data.data.count;
        });
    },
    previewImg(img) {
      this.$imagePreview({
        images: this.previewList,
        index: this.previewList.indexOf(img)
      });
    },
    like(talk) {
      // 判断登录
      if (!this.$store.state.userId) {
        this.$store.state.loginFlag = true;
        return false;
      }

      var index = this.$store.state.talkLikeSet.indexOf(talk.id);
      var isLikeFlag = (index === -1 ? 0 : 1);

      // 发送请求
      this.axios.post("/api/like/talks/" + talk.id + "/" + isLikeFlag).then(({ data }) => {
        if (data.flag) {
          // 判断是否点赞
          if (index != -1) {
            this.$set(talk, "likeCount", talk.likeCount - 1);
          } else {
            this.$set(talk, "likeCount", talk.likeCount + 1);
          }
          this.$store.commit("talkLike", talk.id);
        }
      });
    }
  },
  computed: {
    cover() {
      var cover = "";
      this.$store.state.blogInfo.pageList.forEach(item => {
        if (item.pageLabel == "talk") {
          cover = item.pageCover;
        }
      });
      return "background: url(" + cover + ") center center / cover no-repeat";
    },
    isLike() {
      return function(talkId) {
        var talkLikeSet = this.$store.state.talkLikeSet;
        return talkLikeSet.indexOf(talkId) != -1 ? "#eb5055" : "#999";
      };
    }
  }
};
</script>

<style scoped>
.col-xl,
.col-xl-auto,
.col-xl-12,
.col-xl-11,
.col-xl-10,
.col-xl-9,
.col-xl-8,
.col-xl-7,
.col-xl-6,
.col-xl-5,
.col-xl-4,
.col-xl-3,
.col-xl-2,
.col-xl-1,
.col-lg,
.col-lg-auto,
.col-lg-12,
.col-lg-11,
.col-lg-10,
.col-lg-9,
.col-lg-8,
.col-lg-7,
.col-lg-6,
.col-lg-5,
.col-lg-4,
.col-lg-3,
.col-lg-2,
.col-lg-1,
.col-md,
.col-md-auto,
.col-md-12,
.col-md-11,
.col-md-10,
.col-md-9,
.col-md-8,
.col-md-7,
.col-md-6,
.col-md-5,
.col-md-4,
.col-md-3,
.col-md-2,
.col-md-1,
.col-sm,
.col-sm-auto,
.col-sm-12,
.col-sm-11,
.col-sm-10,
.col-sm-9,
.col-sm-8,
.col-sm-7,
.col-sm-6,
.col-sm-5,
.col-sm-4,
.col-sm-3,
.col-sm-2,
.col-sm-1,
.col,
.col-auto,
.col-12,
.col-11,
.col-10,
.col-9,
.col-8,
.col-7,
.col-6,
.col-5,
.col-4,
.col-3,
.col-2,
.col-1 {
  width: 100%;
  padding: 2px !important;
}
.talk-item:not(:first-child) {
  margin-top: 20px;
}
.talk-item {
  padding: 16px 20px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 3px 8px 6px rgb(7 17 27 / 6%);
  transition: all 0.3s ease 0s;
}
.talk-item:hover {
  box-shadow: 0 5px 10px 8px rgb(7 17 27 / 16%);
  transform: translateY(-3px);
}
.user-info-wrapper {
  width: 100%;
  display: flex;
}
.user-avatar {
  border-radius: 50%;
}
.user-avatar {
  transition: all 0.5s;
}
.user-avatar:hover {
  transform: rotate(360deg);
}
.user-detail-wrapper {
  flex: 1;
  margin-left: 10px;
  width: 0;
}
.user-nickname {
  font-size: 15px;
  font-weight: bold;
  vertical-align: middle;
}
.user-sign {
  margin-left: 4px;
}
.time {
  color: #999;
  margin-top: 2px;
  font-size: 12px;
}
.top {
  color: #ff7242;
  margin-left: 10px;
}
.talk-content {
  margin-top: 8px;
  font-size: 14px;
  white-space: pre-line;
  word-wrap: break-word;
  word-break: break-all;
}
.talk-images {
  padding: 0 10px;
  margin-top: 8px;
}
.images-items {
  cursor: pointer;
  border-radius: 4px;
}
.talk-operation {
  margin-top: 10px;
  display: flex;
  align-items: center;
}
.talk-operation-item {
  display: flex;
  align-items: center;
  margin-right: 40px;
  font-size: 12px;
}
.operation-count {
  margin-left: 4px;
}
.load-wrapper {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.load-wrapper button {
  background-color: #49b1f5;
  color: #fff;
}
.like-btn:hover {
  color: #eb5055 !important;
}
</style>
